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Tinder Fire, April 2018 Coconino

Out · last detection 28 Apr 2018, 20:25 UTC

The fire started on 27 April 2018 in Coconino, United States, and satellites saw it burning for 1 day. United States agencies (MTBS / NIFC) mapped an official burnt perimeter of 6,503 hectares, spread across a single county.

It is the 52th largest in Arizona since 2016 (of 380 with a page). Number 90 in United States in 2018, of 511.

Burnt area
6,503ha
official perimeter (MTBS / NIFC)
Duration
1day
27 Apr 2018 – 27 Apr 2018
Municipalities hit
1
counties
Started on
27 Apr
2018
Heat detections
366
in a single hotspot: 207 MW
Danger at start
35
High · FWI index
Energy released
269MW
sum of detected power

Where it burned

HOTSPOTS BY DAY 27 Apr27 Apr

How it evolved, day by day

28

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

28°high
92km/h · peak gust
10%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started.

This area had burned before

1% of the perimeter overlaps earlier fires recorded since 2016: 55 ha in 2017.

What happened to each town

  1. Coconino where it started
    6,435 ha reached on 28 Apr
    0.1 %

Burnt area inside each county, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

The weather day by day

ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.

Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

Day High Min. humidity Peak gust Rain Danger (FWI)
27 Apr 20.8 °C 20 % 41 km/h 0.3 mm High 35
28 Apr after 21.4 °C 19 % 60 km/h 0.3 mm Very high 42
29 Apr after 18.7 °C 13 % 82 km/h 0.0 mm Extreme 54
30 Apr after 15.6 °C 18 % 67 km/h 0.0 mm Very high 45
1 May after 12.9 °C 26 % 78 km/h 4.2 mm Low 7
2 May after 7.0 °C 55 % 57 km/h 6.9 mm Very low 0
3 May after 13.9 °C 32 % 35 km/h 0.2 mm Very low 3
4 May after 19.0 °C 23 % 44 km/h 0.0 mm Low 10
5 May after 24.4 °C 13 % 31 km/h 0.0 mm Moderate 19
6 May after 25.9 °C 12 % 42 km/h 0.0 mm High 28
7 May after 24.3 °C 15 % 53 km/h 0.0 mm High 33
8 May after 28.5 °C 10 % 30 km/h 0.0 mm High 30
9 May after 27.6 °C 10 % 52 km/h 0.0 mm Very high 38
10 May after 26.1 °C 12 % 68 km/h 0.0 mm Very high 47
11 May after 22.4 °C 17 % 92 km/h 0.0 mm Extreme 57
12 May after 18.3 °C 17 % 78 km/h 0.0 mm Very high 47
13 May after 19.1 °C 14 % 60 km/h 0.0 mm Very high 39
14 May after 20.7 °C 14 % 64 km/h 0.0 mm Very high 42
15 May after 22.8 °C 12 % 56 km/h 0.0 mm Very high 40
16 May after 24.6 °C 8 % 53 km/h 0.0 mm Very high 44
17 May after 22.8 °C 10 % 62 km/h 0.0 mm Very high 48
18 May after 21.9 °C 9 % 43 km/h 0.0 mm Very high 39
19 May after 23.7 °C 12 % 41 km/h 0.0 mm Very high 42
20 May after 23.0 °C 12 % 55 km/h 0.0 mm Very high 47
21 May after 21.9 °C 13 % 66 km/h 0.0 mm Extreme 53

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 20 Apr 2018
After · 4 May 2018

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 366Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in United States ›

Frequently asked questions

How long did the Tinder fire last?
It burned between 27 April 2018 and 27 April 2018: 1 day, according to the start date recorded by United States agencies (MTBS / NIFC) and the heat detections seen by satellite.
How much area did it burn?
The official perimeter published by United States agencies (MTBS / NIFC) is 6,503 hectares (65.0 km²). Other tallies, such as daily incident reports, may give slightly different figures.
Which counties burned?
The fire only entered Coconino (6,435 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 28.5 °C, humidity dropped to 10 % and gusts hit 92 km/h. The fire danger index (FWI) reached 57, class Extreme.
Where does this data come from?
From the official burnt perimeter of United States agencies (MTBS / NIFC, public domain), NASA FIRMS VIIRS hotspots and the administrative boundaries of United States. It is not an official report.

Where to verify it

A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.

Emergency number: 911

Satellite cross-check

Does something look wrong on this page?

This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.

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We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 911.

Where this data comes from

The perimeter is official and in the public domain. For past years it comes from MTBS (Monitoring Trends in Burn Severity), run by the U.S. Geological Survey and the USDA Forest Service, which map it on Landsat and Sentinel-2 imagery. For the current and last year it comes from WFIGS at the National Interagency Fire Center (NIFC): incident perimeters mapped by fire crews, aircraft and imagery. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. County boundaries come from geoBoundaries ADM2 (Public Domain). The area per county is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from official figures.